Guaranteed quality electrical installations
Serving London, Kingston and Surrey areas
At THS Electrical, we provide professional electrical installation services in London, Kingston upon Thames, and Surrey. With a steadfast commitment to excellence and a wealth of experience, we take pride in ensuring your safety and being a trusted name in the industry. Our skilled team of certified electricians is dedicated to providing top-notch solutions for residential, commercial, and industrial properties.
Submit a callback request and we will get in touch to discuss all installations you may need.
Whether you’re seeking professional assistance for new electrical installations, upgrades, or repairs, we have you covered. Our comprehensive range of services ensures that we can cater to all your electrical needs, no matter the scale or complexity of the project. From meticulously planning and designing to executing with precision, our focus remains on delivering outstanding results that surpass expectations.
Trustindex verifies that the original source of the review is Checkatrade.
Great Service. Richard and young apprentice arrived on time assessed the issue and quickly concluded that the issue was caused by old lights which were faulty. They replaced with new lights and tidied up all the cabling. They were polite and very clean. Would recommend them and use their services again.Trustindex verifies that the original source of the review is Checkatrade.
Reliable, Professional & Goes the Extra Mile I can’t recommend Tony and his team highly enough. From start to finish, they were professional, dedicated, and incredibly hardworking. We had a tricky electrical issue, but they didn’t give up—they methodically worked through the problem with real determination until the end. On top of that, they installed our new oven perfectly, making sure everything was safe. What really stood out was their attention to detail and willingness to go the extra mile to get things right rather than rushing the job. If you’re looking for reliable electricians these are the people to call.Trustindex verifies that the original source of the review is Checkatrade.
Domestic electrical works I found the electrician very polite and courteous (including wearing protective shoe coverings whilst in the house). He was late arriving however managed my expectations by contacting me in advance to let me know. Work to replace a spur and outside security light were completed with the minimum of fuss and electrician cleaned up after himself. I asked him about another job (which I had not previously mentioned) but this could not be completed (needed parts) however he advised what needs to happen to sort it, which will require another visit. I recommend their services.Posted on Google
24 October 2025Trustindex verifies that the original source of the review is Google.
Excellent service, even if only to change a faulty light bulb! Arrived within a couple of hours. Very friendly. I hope they laughed as much as I did at my stupidity using dodgy bulbs and thinking it was a more serious problem. I blame old age! Thank you.Posted on Trustatrader
18 September 2025Trustindex verifies that the original source of the review is Trustatrader.
I am so happy with the work done for me by this company. Even though the work I needed done was quite small, the engineer sent was very pleasant, polite and professional. He replaced the batteries in my smoke alarms and replaced the light pendant in one of the bedrooms with ease. He took time to answer questions I had, cleaned up the little mess left while removing the light pendant and checked that everything was in good working order before he left. I think I have found my go to company for dealing with any electrical issues I may have in the future. I am very happy to recommend this company to anyone wanting good service for a reasonable price.Posted on Google
21 August 2025Trustindex verifies that the original source of the review is Google.
I have just used ths for my mum, to rewire her lighting circuit and new fuse box. Tony and his guys were absolutely brilliant, they've done an outstanding job, my mum is over the moon. But more importantly they were very respectful and helpful towards her as she's not in the best of health. I would 100% recommend very well priced and lovely fellas to boot. I would give more stars if I could.Posted on Trustatrader
6 March 2025Trustindex verifies that the original source of the review is Trustatrader.
I called THS Electrical Services to ask if they were free the following day to replace a faulty light switch and replace a broken outside light. Richard Ha asked me to provide a photo of the broken light which I did by email and he responded by return email with a price which I agreed. He arrived at the appointed time and thoughtfully applied plastic shoe covers before coming into the house. He fixed and tested the faulty light switch quickly. Replacing the broken light with the new PIR version I had purchased took a little longer as it was a bright sunny day and mimicking the dark and movement required for the PIR to work was tricky but Richard persevered and got it working to my satisfaction. I was extremely impressed with Richard's clear and prompt communications skills and his professional approach. He even sent a text next morning to check the light was working OK, which it was. I highly recommend this company and Richard in particular.
Our electrical installations services cover
Lighting & Power
Lighting design and installation, power system upgrades and maintenance, lighting switch repairs and fixes.
Smoke Fire & CO Detectors
Advanced smoke, fire, and carbon monoxide (CO) detection installation services.
Fuseboard Replacements
Upgrade to modern consumer units that offer less risk to your property and easy fault detection.
Electrical Appliances
Install new appliances safely and professionally. We can collect and dispose of your old one as well.
EV Charging Stations
Charge your EV at home with ease. We install reliable, high-quality charging points for hassle-free, efficient charging.
Smart Home Technology
Upgrade your home with smart lighting, heating, security, and more. Make your home smarter, safer and efficient.
Why choose us?
- 1-Hour Response
- 24/7 Emergency callout
- 12 Month Guarantee
- Excellent Customer Service
- Excellent Reviews
- Free Estimates
- Fully Qualified & Certified
We provide electrical installations to the following sectors

Domestic installations
At THS Electrical, we take pride in offering high-quality domestic electrical installation services. Whether it's upgrading an electrical panel, installing lighting fixtures, or interconnecting all your devices, we handle every project with precision and utmost care.

Commercial installations
As a leading provider in the industry, we understand the unique demands of businesses. From large-scale office complexes to retail spaces and industrial facilities, we have the expertise to handle projects of all sizes and complexities.

Industrial Instalaltions
We understand the critical importance of safety, efficiency, and adherence to strict regulations in industrial environments ranging from manufacturing plants and warehouses to data centres, refineries, and other large-scale facilities.
Electrical installations FAQs
Which areas do you cover?
We cover all areas of London, within the M25, Kingston upon Thames, Richmond, New Malden, Teddington and all around Surrey. Find out if we cover your area. Check if we cover your area.
- City of London
- Barking & Dagenham
- Barnet
- Bexley
- Brent
- Bromley
- Camden
- Croydon
- Ealing
- Enfield
- Greenwich
- Hackney
- Hammersmith & Fulham
- Haringey
- Harrow
- Havering
- Hillingdon
- Hounslow
- Islington
- Kensington & Chelsea
- Kingston upon Thames
- Lambeth
- Lewisham
- Merton
- Newham
- Redbridge
- Richmond upon Thames
- Southwark
- Sutton
- Tower Hamlets
- Waltham Forest
- Wandsworth
- Westminster
What is the typical timeframe for completing an electrical installation project?
The timeframe for completing an electrical installation project varies depending on its scope and complexity. For smaller tasks, the completion time can be relatively quick, while larger projects may take a few days to several weeks. We prioritise efficiency without compromising on quality.
Book us online for your reliable electrical installations.
Is your company insured against any damages that might occur during installations?
Absolutely. We carry comprehensive insurance coverage to protect both our clients and our electricians against any unforeseen damages that may occur during the installation process. Rest assured, we prioritise safety and take necessary precautions to minimise risks.
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